package main

import (
	"encoding/json"
	"fmt"
	"io"
	"log"
	"net/http"
	"strings"
)

var apiToken = "421791796:AAE4wPbcqfLP1GNeGR3RTBiyX16fCj3HPAM"

func main() {
	fmt.Println("vim-go")
	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusNotFound)
	})
	http.HandleFunc("/zeexkfcsdjpmncirkyelwzotjmmefcqtcogrfwnafidionxiacwnslwuhbwfuppjgwzbmazd", func(w http.ResponseWriter, r *http.Request) {
		w.Write([]byte("ok"))
		body, err := io.ReadAll(r.Body)
		if err != nil {
			log.Println(err)
			return
		}
		log.Println(string(body))
		update := struct {
			Message *struct {
				ID   int `json:"message_id"`
				Chat struct {
					ID int `json:"id"`
				}
				Text string
			}
			CallbackQuery *struct {
				ID      string `json:"id"`
				Message struct {
					ID   int `json:"message_id"`
					Chat struct {
						ID int `json:"id"`
					}
					Data string
				}
			} `json:"callback_query"`
		}{}
		err = json.Unmarshal(body, &update)
		if err != nil {
			log.Println(err)
			return
		}

		if update.Message != nil {
			go sendButtonAndDelete(update.Message.Chat.ID, update.Message.ID, update.Message.Text)
		} else if update.CallbackQuery != nil {
			answerUrl := fmt.Sprintf("https://api.telegram.org/bot%s/answerCallbackQuery?callback_query_id=%stext=ok", apiToken, update.CallbackQuery.ID)
			resp, err := http.Get(answerUrl)
			if err != nil {
				log.Println(err)
				return
			}
			body, err = io.ReadAll(resp.Body)
			if err != nil {
				log.Println(err)
				return
			}
			log.Println(string(body))
		}
	})
	port := 28923
	log.Panic(http.ListenAndServe(fmt.Sprintf(":%v", port), nil))
}

func sendButtonAndDelete(chatID int, messageID int, text string) {
	url := fmt.Sprintf("https://api.telegram.org/bot%s/sendMessage", apiToken)
	sendMsgFmt := `
			{
				"chat_id": "%d",
				"text": "ok",
			    "reply_markup": {
			      "inline_keyboard": [[
			        {
			     	 "text": "%s",
					 "callback_data": "42"
			        }
			      ]]
			}
			`
	sendMsgReq := fmt.Sprintf(sendMsgFmt, chatID, text)
	resp, err := http.Post(url, "application/json", strings.NewReader(sendMsgReq))
	if err != nil {
		log.Println(err)
		return
	}
	log.Println(resp)
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		log.Println(err)
		return
	}
	log.Println(string(body))
	deleteUrl := fmt.Sprintf("https://api.telegram.org/bot%s/deleteMessage?chat_id=%d&message_id=%d", apiToken, chatID, messageID)
	resp, err = http.Get(deleteUrl)
	if err != nil {
		log.Println(err)
		return
	}
	body, err = io.ReadAll(resp.Body)
	if err != nil {
		log.Println(err)
		return
	}
	log.Println(string(body))
}

/*
update_id: 547400623
message:
  message_id: 869
  from:
    id: 385713421
    is_bot: false
    first_name: Balakrishnan
    language_code: en
  chat:
    id: -832015899
    title: Playbot
    type: group
    all_members_are_administrators: true
  date: 1671850862
  text: Hi
update_id: 547400624
callback_query:
  id: "1656626530601531051"
  from:
    id: 385713421
    is_bot: false
    first_name: Balakrishnan
    language_code: en
  message:
    message_id: 868
    from:
      id: 421791796
      is_bot: true
      first_name: grocery_guy
      username: grocery_guy_bot
    chat:
      id: -832015899
      title: Playbot
      type: group
      all_members_are_administrators: true
    date: 1671074930
    text: foo
    reply_markup:
      inline_keyboard:
        - - text: blah
            callback_data: "42"
  chat_instance: "5165047605234327446"
  data: "42"
*/